v3.26.1
Business Combinations - Pro Forma (Details) - Columbia Banking Systems and Pacific Premier Bancorp Merger - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Business Combination [Line Items]    
Net interest income $ 596  
Non-interest income 88  
Net income (1) $ 159  
Acquisition related costs excluded from pro-forma net income   $ 14